Unreal Engine Issues
Unreal Engine Issues
Niagara Sub UV Index ignored
UE - Niagara - May 16, 2019Using the Particles.SubImageIndex has no effect on what portions of the a UV are rendered in Niagara. Tested in 4.21.2 (CL - 4753647), 4.22.1 (CL - 6063286), 4.23 (CL - 6533064) ...
WebM video format skips frames when seeking from code
Media Framework - Oct 22, 2019Playing a video in the engine that is WebM format, results in skipped frames. This does not happen with other video formats supported in the engine. Attached are links to the WebM videos used to te ...
Dynamic navmesh update causes navlinks to reset to their default state
UE - AI - Dec 16, 2019Updates to dynamic navmesh cause navlinks to reset to their default state. Navigation still shows the path as accessible even though it isn't. This is a regression from 4.23.1 (CL-9631420) where th ...
Niagara Map Set parameters are improperly named
UE - Niagara - Mar 9, 2020Parameters are misnamed when adding a new parameter to Map Set in a Niagara Module Script Tested: 4.23.1, 4.24.3 , 4.25 preview, 4.26 (main) ...
checkSlow hit when using array with replication condition in Iris
UE - Networking - Iris - Dec 12, 2023For arrays, FPropertyReplicationStateDescriptorBuilder::IsSupportedProperty will set the FMemberProperty's ChangeMaskBits to "1U + FPropertyReplicationState::TArrayElementChangeMaskBits". If the arr ...
In LandscapePatchComponent, expose HeightTextureAsset and HeightSourceMode to BP
UE - Graphics Tools - Terrain - Landscape - Nov 26, 2024Requested by UDN : https://udn.unrealengine.com/s/case/500QP00000RyWvAYAV/requesting-an-engine-mod-to-access-certain-landscape-texture-patch-properties-in-blueprints-via-getters?fromCase=1 ...
Duplicate subobjects when you attach to an OptionalDefaultSubobject
UE - Framework - Components - Jun 3, 2022I believe that this is happening because of a problem within USubobjectDataSubsystem::FindOrCreateAttachParentForComponent where it is creating duplicates of the character mesh because the "TestScen ...
VC Runtime not in UnrealLightmass temp directory; causing lightmass build errors
UE - Foundation - Cpp Tools - UnrealBuildTool - Oct 14, 2015A Redistribute file for VS 2015 is needed to build lightmass, but this is not currently included with the engine. If a user does not have VS 2015 installed, lightmass will fail with this error: Un ...
Collision Boxes not set properly when using negative values
UE - Simulation - Physics - May 15, 2015When using multiple collision boxes with the mesh scaled in a negative axis while the collision boxes are rotated that the rotation is not taken into account when using the negative scale. ...
Editor will crash when Blueprint Details Panel is dragged across the Event Graph
Tools - May 6, 2015When dragging the Details Panel in a Blueprint across the event graph the editor will crash. [Link Removed] ...